CAJ | 학술논문

通过VPG软件建立车‐箱梁有限元模型，经LS‐DYNA程序计算，得出双层预应力斜拉桥箱内车辆碰撞力‐时程曲线，提出通过时程曲线计算等效碰撞力的修正方法。对比已有研究，验证各类计算方法的优劣及适用性，为此类新型桥梁结构防撞设计提供设计参考。
통과VPG연건건립차‐상량유한원모형，경LS‐DYNA정서계산，득출쌍층예응력사랍교상내차량팽당력‐시정곡선，제출통과시정곡선계산등효팽당력적수정방법。대비이유연구，험증각류계산방법적우렬급괄용성，위차류신형교량결구방당설계제공설계삼고。
Through VPG software to build Car‐box girder finite model ,calculated by the program of LS‐DYNA ,and finally it can reach inner‐box vehicle collision force time history curve of the double prestressed concrete cable‐stayed bridge .On this basis ,the paper puts forward the correction method of calculate equivalent collision force by time history curve .Compared with the existing research on advantages and disadvantages of all kinds of calculation methods ,it has provided an?anti‐collision design method of this new kind of bridge structure .